glsl: Count function call outvals as writing to variables for linker checks.
Fixes: glsl-vs-position-outval. Bug #28138 (regnum online)
diff --git a/src/glsl/linker.cpp b/src/glsl/linker.cpp
index deb30d7..38d19c4 100644
--- a/src/glsl/linker.cpp
+++ b/src/glsl/linker.cpp
@@ -106,6 +106,27 @@
return visit_continue_with_parent;
}
+ virtual ir_visitor_status visit_enter(ir_call *ir)
+ {
+ exec_list_iterator sig_iter = ir->get_callee()->parameters.iterator();
+ foreach_iter(exec_list_iterator, iter, *ir) {
+ ir_rvalue *param_rval = (ir_rvalue *)iter.get();
+ ir_variable *sig_param = (ir_variable *)sig_iter.get();
+
+ if (sig_param->mode == ir_var_out ||
+ sig_param->mode == ir_var_inout) {
+ ir_variable *var = param_rval->variable_referenced();
+ if (var && strcmp(name, var->name) == 0) {
+ found = true;
+ return visit_stop;
+ }
+ }
+ sig_iter.next();
+ }
+
+ return visit_continue_with_parent;
+ }
+
bool variable_found()
{
return found;